I know you folks there at link-assistant will customize reports for us, but is there a useful piece of software out there that we can use to customize our own reports? I'd like to change some colours and fonts too....

There is no software to customize the reports, but you can change simple things like color and fonts yourself using basics of HTML. You can open a report template and use Ctrl + F and locate all instances of "font" and "color" settings. You can alter those by typing in necessary font names or HTML color codes ( e.g. http://html-color-codes.info/ ).